20003455350 has 144 divisors (see below), whose sum is σ = 56172074400. Its totient is φ = 5093890560.

The previous prime is 20003455337. The next prime is 20003455361. The reversal of 20003455350 is 5355430002.

20003455350 is a `hidden beast` number, since 200 + 0 + 3 + 455 + 3 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8371956 + ... + 8374344.

It is an arithmetic number, because the mean of its divisors is an integer number (390083850).

Almost surely, 2^20003455350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003455350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28086037200).

20003455350 is an abundant number, since it is smaller than the sum of its proper divisors (36168619050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003455350 is a wasteful number, since it uses less digits than its factorization.

20003455350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239 (or 3231 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

Adding to 20003455350 its reverse (5355430002), we get a palindrome (25358885352).

The spelling of 20003455350 in words is "twenty billion, three million, four hundred fifty-five thousand, three hundred fifty".